EP 0281304 B1 19900919 - HYDRAULIC CONTROL SYSTEM FOR AUTOMATIC TRANSMISSION
Title (en)
HYDRAULIC CONTROL SYSTEM FOR AUTOMATIC TRANSMISSION
Publication
Application
Priority
JP 4470087 A 19870227
Abstract (en)
[origin: EP0281304A1] A hydraulic control system for an automatic transmission detects the rotating speed of the parts (Co) whose rotating speed varies due to shifting, and controls the transitional oil pressure applied to the frictionally engaging device (B2) in the automatic transmission so that the detected rotating speed matches the locus of the target rotating speed that said parts should follow after the shift command is outputted. Thus, the optimum shifting transitional characteristics can be obtained regardless of the inherent differences among otherwise identical vehicles which differences are created at the time of manufacturing or vary with time and vehicle use.
IPC 1-7
IPC 8 full level
B60W 10/04 (2006.01); B60W 10/06 (2006.01); B60W 10/10 (2006.01); B60W 10/11 (2012.01); F16H 61/06 (2006.01); F16H 61/08 (2006.01); F16H 61/10 (2006.01); F16H 59/38 (2006.01); F16H 59/42 (2006.01); F16H 59/46 (2006.01); F16H 59/68 (2006.01); F16H 61/00 (2006.01); F16H 61/02 (2006.01)
CPC (source: EP US)
F16H 61/061 (2013.01 - EP US); F16H 61/067 (2013.01 - EP US); F16H 59/38 (2013.01 - EP US); F16H 59/42 (2013.01 - EP US); F16H 59/46 (2013.01 - EP US); F16H 2059/6807 (2013.01 - EP US); F16H 2061/0078 (2013.01 - EP US); F16H 2061/0255 (2013.01 - EP US)
Citation (examination)
- EP 0182376 A2 19860528 - NISSAN MOTOR [JP]
- DE 3205767 A1 19830825 - BOSCH GMBH ROBERT [DE]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0281304 A1 19880907; EP 0281304 B1 19900919; DE 3860619 D1 19901025; JP S63212137 A 19880905; US 4843922 A 19890704
DOCDB simple family (application)
EP 88301543 A 19880223; DE 3860619 T 19880223; JP 4470087 A 19870227; US 15866988 A 19880222